Pressing or treatment roller



June 16, 1936}. F. SCHUSTER PRESSING, OR TREATMENT ROLLER Filed Oct. 25, 1934 Patented June 16, 1936 UNITED STATES PATENT OFFICE Application October 23', 1934, Serial No. 749,684 In Germany November 25, 1933 4 Claims. (01. 68-33) This invention relates to a'pressing or' treatsegment 4, which constitutes a tightening mem ment o e v a facing or covering y' ber. About the roller there is provided a facing be'e a daSd d. wherein thei'oller jacket or covering of'suitable material, such as rubber, is capable of adjustment by the use of segmental rubber composition, felt, papie-r mach, or the like.

portions and surfaces which are situated below If for example the covering is composed of rubber 5 the jacket and -are disposed obliquely tothe axis sponge, the latter may be vulcanized on to a base of the roller. composed of linen or the like. If the covering,

The segments hitherto employed in the known however, is of suificient thickness, this base may type of roller arerelatively complicated machine be omitted. As shown in Fig. 2, the covering may elements, so that the same may be produced and form a hollow seamless cylinder, and may be apworked up only w th difficulty. Beyond this the plied to or removed from the core "of the roller entire roller is made comparatively heavy by segas a whole. 7

ments of this nature. l On the shaft 1 of the roller there are mounted. Now it has already been proposed toprovide' a at either end shiftable tightening members 1,

lighter form of construction by the use of a slotted which may be pressed in suchfas'hion by means of 5 1 jacketto the roller, therebeing'furn-ished at the nuts '8 against'the inclined faces of the segments endsof the sheet metal jacket rings'ha'ying conical 4 that an increase takes place in the diameter faces, which are capable of adjustment by means of the'roller jacket constituted bythe sections 2. of conical portionsadapted to be screwed in. To prevent the sections 2 from falling apart 2%) This arrangement, however, in the known form of upon removal'of the covering 5 there is fitted on 26 embodiment does-not permit of as'atisfactoryem the shaft 1 towardseither end of the roller a disk gagement between the conical faces, so" that a 9 having an angular flange l0. -Into the space properreadjustment of the roller is also imconfined by this cup-like structure there project possible. abutments or pins II which, as shown in Fig. 1,

Further, it has also been proposed to divide the are mounted on the members l. The angular '25 rollerjacket intosegments'. These segments,h0wflange Ill, against which the pins ll rest when ever, are not capable of a simultaneous adjustthe covering or facing 5 is removed, hold the secment in common, and moreover; beingcastings, tions of the roller to such extent together that they have a particular sectional form which is relthe same are unable to fall apart. They also preatively difficult to produce.

"The disadvantages'above referredto are 'obvi- The covering or facing 5 may be exchanged as ated in accordance with the invention 'by the 'fact follows: i t 7 that the tightening members bearing the inclined After release of the two nuts 8 the members 1 faces are constructed as wedge-shaped segments are withdrawn to such extent that the clamping seated at the ends of the jacket sections. These effect against the segments 4 is removed. The 35 segments are capable of adjustment in common by jacket sections 2 located on the segments are now an additional tightening member shiftable along able to move radially inwards, the diameter of the roller axis. 7 the roller thus being decreased. The covering 5 The invention is illustrated by way of example may then be removed quite readily from the roller 40 in the accompanying drawing, in which and replaced by another covering. The nuts are 40 Fig. 1 is a view of the pressing roller, partly in thereupon again tightened, which exerts pressure longitudinal section. on the sections 2 and thus causes an increase in Fig. 2 is an end view of the roller. the diameter of the jacket. As shown by the Fig. 3 shows an additional form of embodiment drawing, slight differences in the internal diamof the roller. eter of the covering are readily compensated, as 45 With reference to the drawing, I is the shaft the tightening movement of the sections may be of the roller, on which there is mounted in the made of corresponding extent without the least manner described later-the jacket comprising the difficulty. single sections 2. In the particular form of em- In the form of embodiment according to Fig. 3

bodiment illustrated there are provided three secthe tightening members la. may be mounted on tions 2, as shown in Fig. 2. Between the sections rods [8. These rods project into a cylinder 19 2 there is a certain intermediate spacing 3, so arranged in the centre of the core of the roller, that the sections may be approached towards each and are guided in the cylinder abutments 20. other in the peripheral direction. At'the two ends The rods in this manner form pistons. One of 5 of each section 2. there is provided'a wedge-like the rods (in the form of embodiment according vent a displacement in the longitudinal direction. 36 7 to Fig. 3 the upper one) possesses a central passage 2| for the supply of a pressure agent to the cylinder l9. By the supply of pressure agent to the cyinder the rods are forced outwards in the abutments 23, taking with them the parts Ia and thus causing the covering to be tensioned about the roller.

As in Fig. 2, the means for preventing the sections from falling apart consists of disks 9a fitted on the shaft l8 at either end, which disks have flanges Illa on their periphery. Projections Ha attached to the wedge-like segment 4a project into the cup-like structure formed by the disks with their flanges and thus prevent the sections 2a from falling apart.

The arrangement according to the invention also possesses the particular advantage that a movement of the covering in relation to the core or jacket is impossible in itself, or if tending to occur may readily be prevented by tightening the nuts 8.

- As already stated, the covering may be composed of various materials, and in the particular example quoted is assumed to be of rubber or rubber sponge. It is however, also possible to employ coverings or facings of felt, composition or other materials, these coverings also being made in the manner described so as to permit of their ready replacement.

It will be understood that no limitation is made to the particular forms of embodiment described in the above, which have been quoted merely by way of example, and that numerous modifications are quite possible within the meaning of the above description and the annexed claims without departing from the spirit of the invention.

What I claim as new and desire to secure by Letters Patent is:

' 1. In a pressing or treatment roller, a shaft, a roller jacket'mounted on the said shaft and comprising a plurality of sections, wedge-like segments the inner faces of which are flat and inclined to the axis of said shaft mounted on the inner faces of the said sections towards either endof the said jacket, members having flat outer faces, and on the said shaft adapted to engage with the inclined faces of the said segments, an outer covering about the said jacket, and means for pressing the said members on the said shaft against the said segments for the purpose of forcing the said sections apart into close contact with the said covering.

2. In a pressing or treatment roller, a shaft, a roller jacket mounted on the said shaft and comprising a plurality of sections, wedge-like segments the inner faces of which are fiat and inclined to the axis of said shaft mounted on the inner faces of the said sections towards either end of the said jacket, members having flat outer faces, and adapted to engage with the inclined faces of the said segments, an outer covering about the said jacket, and means for applying a pressure agent to the said members for pressing the said members against the said segments for the purpose of forcing the said sections apart into close contact with the said covering.

3. In a pressing or treatment roller, a shaft, a roller jacket mounted on the said shaft and comprising a plurality of sections, wedge-like segments the inner faces of which are fiat and inclined to the axis of said shaft mounted on the inner faces of the said sections towards either end of the said jacket, a cylinder within the said jacket, rods extending longitudinally of the said jacket into the said cylinder, members mounted on the said rods having flat outer faces and adapted to engage with the inclined faces of the saidsegments, an outer covering about the said jacket, and. means for applying a pressure agent to the said cylinder to force the said rods outwards and move the said members thereon against the said segments for the purpose of forcing the said sections apart into close contact with the said covering.

4. In a pressing or treatment roller, a shaft, a roller jacket mounted on the said shaft and comprising a plurality of sections, wedge-like segments the inner faces of which are flat and inclined to the axis of said shaft mounted on the inner faces of the said sections towards either end of the said jacket, members having fiat outer faces, and adapted to engage with the inclined faces'of; the said segments, an outer covering about the said jacket, means for pressing the said members against the said segments for the purpose of forcing the said sections apart into close contact with the said covering, and means comprising disks mounted on the said shaft towards either end of the said jacket, angular flanges on the periphery of said disks, and abutments on the said segments adapted to engage with the said angular flanges for-preventing the said sections from falling apart upon removal of the said covering.

FRITZ SCHUSTER. 

